The Interfaces and Interaction between Infrastructure Subsystem and Rolling Stock (TTI) is at the intersection of the Rolling Stock, Track and Structure Sectors. Its main purpose is to study vehicle/infrastructure…
The Interfaces and Interaction between Infrastructure Subsystem and Rolling Stock (TTI) is at the intersection of the Rolling Stock, Track and Structure Sectors. Its main purpose is to study vehicle/infrastructure interaction, taking a holistic system-based approach.
The Interfaces and Interaction between Infrastructure Subsystem and Rolling Stock (TTI) is at the intersection of the Rolling Stock, Track and Structure Sectors. Its main purpose is to study vehicle/infrastructure interaction, taking a holistic system-based approach.
The activities of the TTI Sector are aimed towards improving the operational, economic and environmental efficiency of the railway system, as well as ensuring its safety and improving interoperability.
The efficiency, performance and safety levels of the railway system depend on the balance between its various components: infrastructure, rolling stock, operations, environment, regulations, etc. Changes to one of the components is likely to impact the others, as well as the overall balance.
One of the TTI Sector’s core objectives is to identify and anticipate the impact on the system of upcoming changes to its various components.
Currently, UIC TTI coordinates ongoing sub working groups organised in the topics of the sector: Aerodynamics and Acoustics, Pantograph/Catenary Mechanical Interaction, Railway Dynamics and Gauges. Additionally, an observatory of disruptive modes of transport, as hyperloop, was launched in May 2018. The common spirit of the groups is to work together with excellence expertise to:
UIC TTI Sector also contributes to the Leaflets migration plan into new IRSs. The commitment to revise and update our UIC heritage is being developed by specific groups of experts to provide to the whole rail system with an updated knowledge of technical recommendations and guidelines.
Identify interactions and anticipate actions regarding acoustics, aerodynamics and railway dynamics and gauges, to respond to the needs and serve the interests of UIC members.
One of the sector’s most important objectives is to facilitate discussion and information sharing between members at international level.
We are promoting the activity of our sector, giving visibility to our experts and the topics raised by the group. We collaborate with all the regions of the UIC to promote TTI activities. We are taking an active role in worldwide technological seminars as speakers, and we are structuring our research work to present the main findings in railway congresses and professional publications. We organise specific training sessions with our members to help the railway community understand our sector.
We work throughout structured projects with objectives, planification and foreseen deliverables. The projects are structured into the following main pillars:
Pillar 1. Acoustics and Aerodynamics For both new investments and existing networks, new technologies provide tools to be used at the service of a connected and robust infrastructure system.
The new Aerodynamics and Acoustics and Pantograph/Catenary Mechanical Interaction working groups and subgroups have already defined their specific areas of work, scope and tasks to be carried out. The production of White Papers for each topic began in 2018, with some publications within the period 2018-2021:
Pillar 2. Railway dynamics and gauges For both new investments and existing networks, new technologies, methodologies and procedures provide tools to be used at the service of a connected and robust infrastructure system
Dynamics: Concerning diverse aspects, the main topics raised by the railway community are the following: effect of track of instable vehicles, track quality description for maintenance and simulation purposes, application of the right framework on the various measurement systems. The related projects are:
Pillar 3. Pantograph – Catenary The subgroup Pantograph-Catenary is being relaunched. A new white paper is foreseen to follow an organised path in this regard.
Pillar 4. Standardisation TTI is committed with the UIC task of updating the technical documents of the sector worldwide.
